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Hosts and Their Diseases
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Pathogens Common to Many Plants
Oregon’s Most Unwanted: Invasive Species
Nematodes
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Viruses and Viruslike Pathogens
Parasitic Plants of Oregon
Tree Decline
Nonpathogenic Phenomena
Mycorrhiza
Thatch in Home Lawns
Algae, Lichens, and Mosses on Plants
Care and Maintenance of Wood Shingle and Shake Roofs
Winter Injury of Landscape Plants in the Pacific Northwest
Plant Nutrition Diagnosis
Key to Nutrient Deficiencies in Vegetable Crops
Key to Nutrient Deficiencies of Deciduous Fruit and Nuts
Fluorine Toxicity in Plants
Pesticide Articles
Fungicide Theory of Use and Mode of Action
Fungicide Resistance and Fungicide Groups
Fungicide Families or Groups
Fungicides, Bactericides, and Nematicides
Fungicide and Pollen Interactions
Biofungicides and Plant Activators Registered in Oregon
Materials Allowed for Organic Disease Management
Fungicidal Activity and Nutritional Value of Phosphorous Acid
Horticultural Spray Oils
Seed Treatments
Fungicides for Disease Control in the Home Landscape
Spray-tank Adjuvants
Improving Spray Efficiency
Preparing Tank-mix Bordeaux Mixture
Limes in Sprays for Disease Control
Tree Wound Paints
Treating Irrigation Water to Eliminate Water Molds
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Using Pesticides Safely
How to Reduce Bee Poisoning from Pesticides
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Hosts and Their Diseases
Host and Disease Descriptions
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Host and Disease Descriptions
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Abies
sp.
Abutilon-Abutilon Infectious Variegation
Acer
sp.
African Violet (
Saintpaulia
sp.)-Gray Mold
African Violet (
Saintpaulia
sp.)-Leaf Etch
African Violet (
Saintpaulia
sp.)-Nematode, Foliar
African Violet (
Saintpaulia
sp.)-Ring Spot {Water Spot}
African Violet (
Saintpaulia
sp.)-Root and Crown Rot
Ageratum-Botrytis Blight
Ageratum-Impatiens Necrotic Spot
Ailanthus [Tree of Heaven]-Verticillium Wilt
Ajuga-Botrytis Blight
Ajuga-Crown Rot
Ajuga-Powdery Mildew
Alder (
Alnus
sp.)-Armillaria Root Rot
Alder (
Alnus
sp.)-Brown Leaf Blotch
Alder (
Alnus
sp.)-Canker and Stem Diseases
Alder (
Alnus
sp.)-Catkin Hypertrophy and Leaf Curl
Alder (
Alnus
sp.)-Collar Rot {Phytophthora Canker}
Alder (
Alnus
sp.)-Leaf Spot
Alder (
Alnus
sp.)-Nectria Canker
Alder (
Alnus
sp.)-Phytophthora Root Rot
Alder (
Alnus
sp.)-Powdery Mildew
Alder (
Alnus
sp.)-Rust
Alfalfa (
Medicago sativa
)-Alfalfa Mosaic
Alfalfa (
Medicago sativa
)-Anthracnose
Alfalfa (
Medicago sativa
)-Bacterial Wilt
Alfalfa (
Medicago sativa
)-Crown and Root Rot Complex
Alfalfa (
Medicago sativa
)-Crown Wart
Alfalfa (
Medicago sativa
)-Damping-off
Alfalfa (
Medicago sativa
)-Dodder
Alfalfa (
Medicago sativa
)-Downy Mildew
Alfalfa (
Medicago sativa
)-Leaf Spots and Blotches
Alfalfa (
Medicago sativa
)-Nematode, Bulb and Stem
Alfalfa (
Medicago sativa
)-Nematode, Lesion
Alfalfa (
Medicago sativa
)-Nematode, Root-knot
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